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The morphology of circulus arteriosus cerebri in the red squirrel (Sciurus vulgaris)

Author

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  • A. Aydin

    (Faculty of Veterinary Medicine, Firat University, Elazig, Turkey)

Abstract

In this study, the circulus arteriosus cerebri of the squirrel was investigated. Ten squirrel were used. Coloured latex was given from left ventriculi of the all squirrels. Circulus arteriosus cerebri was examined after the dissection was made. The basilar artery was formed by merge of the right and left vertebral artery. The caudal communicans artery which was caudal part of circulus arteriosus cerebri was formed by the basilar artery on sulcus pontocrurale. From caudal to cranial, the branches originated from the basilar artery and circulus arteriosus cerebri to cerebrum and cerebellum were as follows: the caudal cerebelli artery,rami ad pontem, the rostral cerebelli artery, the caudal choroidea artery, the caudal cerebral artery, the internal ophtalmic artery, the rostral choroidea artery, the media cerebral artery, rami striati and the rostral cerebral artery. In squirrels a variability was observed in the branches that the rostral cerebral artery gives, and their endings. It was determined that the internal carotid artery didn't exist in 4 animals when the right and left vertebral artery were ligatured. It was found that the internal carotid artery didn't contribute to the arterial blood to circulus arteriosus cerebri and the arterial blood to circulus arteriosus cerebri of squirrels is provided via only the basilar artery.

Suggested Citation

  • A. Aydin, 2008. "The morphology of circulus arteriosus cerebri in the red squirrel (Sciurus vulgaris)," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 53(5), pages 272-276.
    • Handle: RePEc:caa:jnlvet:v:53:y:2008:i:5:id:1948-vetmed
    DOI: 10.17221/1948-VETMED
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    Citations

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    Cited by:

    1. A. Aydin, 2011. "The spinal nerves that constitute the brachial plexus in the red squirrel (Sciurus vulgaris)," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 56(8), pages 405-408.
    2. A. Aydin & Z.E. Ozkan & S. Yilmaz & R. Ilgun, 2009. "The morphology of the circulus arteriosus cerebri in the ground squirrel (Spermophilus citellus)," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 54(11), pages 537-542.
    3. A. Aydin, 2010. "The spinal nerves that constitute the plexus lumbosacrales of the red squirrel (Sciurus vulgaris)," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 55(4), pages 183-186.

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